Münster 2017 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 4: Structure and Dynamics of Nuclei I
HK 4.2: Talk
Monday, March 27, 2017, 17:15–17:30, F 2
Systematics of the Electric Dipole Response in Stable Tin Isotopes* — •Sergej Bassauer1, Peter von Neumann-Cosel1, and Atsushi Tamii2 for the E422 collaboration — 1Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany — 2Research Center for Nuclear Physics, Osaka 567-0047, Japan
The electric dipole is an important property of heavy nuclei. Precise information on the electric dipole response provides information on the electric dipole polarisability which in turn allows to extract important constraints on neutron-skin thickness in heavy nuclei and parameters of the symmetry energy. The tin isotope chain is particularly suited for a systematic study of the dependence of the electric dipole response on neutron excess as it provides a wide mass range of accessible isotopes with little change of the underlying structure. Recently an inelastic proton scattering experiment under forward angles including 0∘ on 112,116,124Sn was performed at the Research Centre for Nuclear Physics (RCNP), Japan with a focus on the low energy strength and polarisability. In this talk first results and further analysis plans will be discussed.
*Gefördert durch die DFG im Rahmen des SFB 1245.